Detroit Speed Stainless Steel Headers - LS EngineThe Detroit Speed, Inc. Chevy II Front Frame Stainless Steel Headers feature a 1 7 8" primary tube diameter for LS engines. These headers come with 4 way inline merge collectors featuring V Band clamps. Our headers are designed and engineered for LS and SBC engines used with the Chevy II Front Frame. Each header features a O2 sensor bung in the collector. These headers are designed for performance, maximum ground clearance, and a clean engine